kidder



(No Model.)

3 Sheets-Sheet f1.

W. P. RIDDER. VTIPI: WRITING MACHINE.

No. 471,795. Patente fm: mums ranas co., m1-runas., msnmarcu, une4 (NoModel.) asneets-sneet 2.

W., P. KIDDBR.

A TYPE WRITING MACHINE. Np. 47`1,795. Patented Mar. 29, 1892. J J'laI 5J'14 .I

me rmnms Psrsws ca., Puo-rauwe., wnsmwsfcu, v, c.

UNITED STATES "PATENT Orr-ICE. f

WELLINGTON PARKER KIDDER, E BOSTON, MASSACHUSETTS, ASSIGNOR' oF ifONE-THIRD 'ro' CLEMENTl B. 'SMYTE TYPE-WRITINGMACHINE. i

sPEcrFIcA'rmN farming pm of Letters Patent No'. 471,7e5, dated Erm-h se,ieee.

Apenas@ files' umberto, A1,891.

To all whom :Zt-may concern.-

Beit known thatA I, WELLINGTON lPARKER KIDDER, df Boston, in the countyof Suiolk and State of Massachusetts, have invented-a new and usefulImprovement in Type-Writing Machines, of which thefollowingis'aspecification, reference being had to .the accompa- Vnyingdrawings,.in which-- Figure 1 '1s aplan of my new type-writer. Fig. 2 isa sectional elevation on line 2 2 of Fig. 1. Fig. 3,'s a rear elevation.Fig. 4 is a view showing the ribbon spools with. ribbon removed forgreater clearness. Fig.. 5 is a detail view of atype-bar in differentposi- Vwhich connects-each key-lever ywith its typebar. Fig. 7 is aperspective of my new panel type-bar. Fig. 8 shows the type-block. Fig.

9 is a diagrammatic view more completely illustrating the type-barguides and beveled type-block. Fig. 1 0 is a side view of two sets ofguides. Fig. 1l is aplan of the machine with parts removed for greaterclearness. Fig.'12 is a top plan of the carriage-supporting mechanism. YFig. 13 shows a 'modification of the escapement mechanism and connectedparts for the endwise feed of the carriage.-

My present invention is an improvement upon the type-writer described in,my application, Serial N o. 386,133, filed March 23, 1891, vand allowedSeptember 30, 1891; and it consists in various details-of construction,'whereby the machine described in the -said proved 1n its construction,operation, and resu'lts. These features of myinvention are `pointed outand claimed hereinafter.

In the` drawings, A is the base; B, the key- 4o levers; B', aArocker-arm connecting each keylever with its corresponding type-bar D,and v -G is the paper-carriage. The keyilevers B are vmounted 'on across-barb, supported 'in this form. of my machine, a 'cross-rib a,slotted 45 at to receive the key-levers, and each key- 5o ably slottedat d to receive the notched end. b' of theroclrererm Bhf-thm', is, thisis the tions yto the guide at the printngpoint. v Fig. 6 is aperspective view of the rocker-arm.

allowed application is simplified and im.

sean-N0. 409,340. uw man.)

`-preferreril form vof connect-ingthese parts.

The end b is bent over at an angle and is notched at b2V 122,50 that onesidewall of slot that slot in notch b3.' Y The type-'bars D are mountedin vertical slots :c2 in rib a2, their front ends being between guidesa, supported bythe guide-plate a4, over which the type-bars slide todeliver impression by end-thrust upon paper onthe platen'g of thepaper-carriage G, which moves -is movable vertically.l A majority of thetypebarssupprt two ormore characters each, the

on the front ends of the bars D. T he typeingthe-type-'block clears thegriide which is opposite thebevel clv and 'allows side di? of type-blockD;to impinge uponA side a7 of 'a Vguideagso that it is deiiectedstraight to the printing-point." Were the type-blocks not beveled at `dthey would beapt to strike against the guide-blocks' a5 and pass betweend', The bevelingisnot absolutely essential, the main feature being thatthe key-D is provided with an extension at each end of` tlfat v,part ofthe type-block on which the characters are, which extension serves asguides. These extensions are shown as parts of the typeblock; but it ismanifest that they may be 1n.- tegral-with bars D, as may also be thetype, if preferred. Thetype-bar-deiiecting guides a5, between which the'type-bars are thrust whenimpressio'n is taken, are each beveled on theiropposed faces at a6 and are rigidly secured at the impression-point, theupper pair conveniently on an upright a7 andthe lower pair onguide-plate a The type-bars move endwise in paths radiating from the thesides of the bar directly facing the printporting ends for impression.AThe .type-bars D |are, necessarily of considerable width vto preventwabblig between the guides a3, but must be as light aspossible, and Itherefore d lies in -notch bz'aud the otherlsidewall oi l endwise in theusual way,whil e the platen g characters being arranged one above theother '.bloefl'rs'D'.v 'on theends of theleversD are each v formedwltliabevel d at each end, so that when the type-bar is thrust forward forprmtlthe,tejido-blocks with much greater friction I than -is nowthe'case, owing tothe beveling at 8 y printing-point, and those barswhich are' at ing-point must be deflected at their type-sup- ICO . offrame A'. Rocker-arm h forni them with openings facing the ribs d4,which are ata suicientdistance apart to prevent wabbling and to minimizethe weight of the bars. The T- shaped rocker-arm B' -forms part `of thespacing mechanism H, its

arm 3 engaging a cross-bar h, secured to a rocker-arm h', which isjonrnaled in lugs h2 is provided with a dog h3, fast on it, and with asliding pawlh4, mounted on it. The dog and pawlengage a rack h5 on thepaper-carriage. The construction and` arrangement of these parts are oldand well known and require no further description. Rockershaft h isprovided with an arm hworking against the force of a suitable spring J,conveniently mounted, as shown, one of its ends being secured to a partof frame A and its other end to the free end of rocker-arm h5.

Inasmuch as the types on a given type-bar are arranged one above theother it is necessary to reciprocate the platen in a vertical path. I,accordingly mount platen g in a frame g', provided with a groove g2 nearits lower edge and extending from end to end of the frame, which slidesup and down in vertical guideways g3 in the endwise-moving section g4 ofcarriage G. Those portions of section g4 whichare formed withtheguideways gs are provided with` racks g5, with which z nesh pinions gs,mounted on cross-rod g", Journaled in frame g', the cross-rod glbeingused to cause the pinions gato travel together and keep the sections ofthe carriage parallel one to the other. `Frame g' is lifted iu its waysby a cam-roll g8, pivoted 'on a studyg, fast on a lever g fast on arocker-shaft g, journ aled at g12 and g13 in frame A. The camrod gs runsin the groove g2 in frame g. It 1s actuated by either of shifting-leversG G2, mounted on a rocker-shaftg14,journaled at g15 g16 in frame A.Rocker-shaft g has arms 917 gis, arm g" engaging end gli and arm g1Bengaging end g of a double lever gm, rigidly mounted cn the front end ofrocker-shaft gu.-

Atpeach endof double lever vg21 arranged to limi the rocking movementsof lever g11 in each direction. When shiftinglever G is depressed,cam-roll g8 is raised through the connections described, carrying withit frame g', in which the platen is mounted -The cam-roll gs is held inone position by the action' of a spring'g23 pressing against a bar g2,which is pivotedto frame A at Q25 and engages projections Q26 and g27 onlever g1", projection Q26 being on one side of rocker-shaft g11 andprojection g22 on the other side thereof. Normally, bar-g24 is inContact a stop g22 is with both projections Q26 gw; but when key G' isdepressed shaft g11 is rocked and projection g26 is carried away fromthe bar, the projection g2" being then moved against-the bar 924,compressing spring g23. lNhen pressure is taken from key G', spring gz3returns the platen to its normal position. When key G2 is operated, themotion of lever g10 is reversed, as will be plain.

The ink-ribbonI (indicated in dotted lines in Fig. 2) is wound on aspindle j and carried over guidej', then under guide 72, and around 7",passing in front of the printingpoint between guidesj and ,72, thenreturning under guide Where. the returning porportion,then over guidet7" to a spindle 74, mounted, like spindle .7', in cover A or at anyother convenient point. Each spindle carries two disks `7'5 je, betweenwhich the ribbon 1s wound, but only lower disk 76 is necessary. Thespindles are provided with a ratchet- Wheel, which is convenientlyprovided by notching the periphery of disks 75. A double pawl J ispivoted at j7 between the spindles 7"7'4 and is held in contact with oneof the ratchet-wheelsjs bya spring 7"3, which 1s abent piece of .sheetmetal secured to angle-piece The pawl is actuated to rotate theratchetwheel by a rocker-leverja, pivoted to cover 1i and connected atits end 713 tc rod 710, which, 1s loosely pinned at j to an arm 712ofprockershaft h'. As the rocker-shaft his moved lthe pawl is actuated.To reverse the movement of the` ribbon, the pawl J is swung into contactwith the other ratchet, the spring 77 holding the pawl in its reversedpasses the dead-center.

ln Fig. 13, showing a modification, the arm 3 of the rocker-lever B is adead part and may be dispensed with, the arm `712 from rocker-shaft hbeing elongated to hold the crossrocker-lever B' and the dog h5 beingabove the sliding'pawl h4 instead of under the sliding pawl, as in Fig.2.

What l claim isl ln a typewriter,a key-leverB, a T-shaped rocker-arm B',and a type-bar D, iii-combination with spacing mechanism, the rocker-armB' being actuated by the key-lever and in turn ism, all substantially asdescribed.

2. In a type-writer, the combination of an endwisemoving paper carriagesection g4, formed with vertical ways g3, a vertically-reciprocatingsection g', supporting the platen` g, mounted in ways g3 and formed witha camgroove g2 running endwise of -it,a cam-roll g8, runnin gin saidgroove and mounted on a rocking lever. g1", rocking lever g1,rocker-shaft g, supporting rocker-lever g1", double lever g21 onrocker-shaft g, rccker-arms g g18 on rocker-shaft gli, each engaging therocker-letiaily as described.

3 In a type-writer, the combination of a series of levers connecting thekey-levers and type-bars, a' rocker-arm common to all theconnecting-levers, and a spring, all substantially as and for thepurpose set forth.v

a. in a type-writer, the combination of a key-lever l, rocker-lever B',

type-bar D, and horizontal guide-plate 0.4,thc

tion is at the side of the downwardly-moving v actuating thetype-bar andspacing mechan-` ver Q21, and shifting-keys G G2, all substan-`t7'1,.which is secured to cover A'. (See Fig. 2.) A

IOO

bar h over the upper edges of arms 1 of theK IIC ries of key-levers, aseries of type-bars, a seendwise-sliding rocker-lever B beingintermediate the typebar D and key-lever B and being directly connectedto ,the type-bar, substantially as shown and described.

5. In a type-writer, the combination of a se# lto all the rocker-leversB', all substantially as and for the purpose set forth.

6. In a type-writer, the combination of a key-leverB with a type-barD,having an edge slot d, and a rocking lever B', having its end b' at anangle and in the slot d of the typebar, all substantially as described.

7. In a type-writer, the combination of a platen, an endwise-movingtype-bar, a supporting-plate therefor, means for actuating saidtype-bar, and two pairs of stationary defiecting-guides secured to saidplate mounted in close proximity to the platen, one pair of thestationary guides receiving and guiding the upper end of the type-blockand the other pair of guides receiving and guiding the lower end of 'thetypeblock, all shown. y

8. In a type -write'r, the combination ot a platen, an endWise-slidingtype-bar provided with a type-block, a supporting-plate forthe type-bar,means for actuating the type-bar, and two pairs of stationary guidessecured to the said plate, the typ-block being provided with endextensions, each of which is received between a pair of the stationaryguides, substantially as and for the purpose set forth.

WELLINGTON PARKER RIDDER.

. W itnesses: j

EDWARD S. BEACH, JOHN R. SNOW.

substantially as

